What actually moves around the Sun along the path usually called Earth's orbit?
A) center of Earth
B) point midway between Earth and the Moon
C) barycenter of Earth and the Moon
D) the center of mass of the Earth-Moon-Sun system

Question

Quizplus · Accepted Answer

The barycenter of Earth and the Moon moves around the Sun along the path usually called Earth's orbit. The barycenter is the common center of mass around which two or more bodies orbit, and in the case of the Earth and Moon, this point is located inside the Earth but not at its center.

What Actually Moves Around the Sun Along the Path Usually